Turbine valve-gear.



H. J. HA-NZLIK' TURBINE VALVE GEAR.

APPLICATION FILED MAR.22,1909.

1,006,654; Patented 0013.24, 1911.

V/"shnes: IPA/ember;

W? Y Henry Han z'liKi b5 W E A'MENT OFFICE.

HENRY .1. jHAN ZLIK, or LYNN, MASSACHUSETTS, assrdnon' "ro,ennn'iuilknmcitme Toell whom it concern:

Be it known that I, HENRY J. HANZLIK, a

- citizen of the United States, residing at L'ynn, county of.Es'sex,State of Massachusetts, have invented certain new and usefulImprovements in Turbine Valve-Gear, of

I which the followingis a specification.

This invention relates to elastic fluid turbin-es, and itsobject is toimprove the valve gear, whereby live steamer other motive fluid can befed at will to other than thefirst stage of the turbine.

. The construction hereinafter set forth is designed especially .forturbines which are intended to berun'ei'ther condensing 'ornoncondensing according to the eircumstances under-whichthey must beoperated. Noncondensing operation tends to decrease the output of themachine, so it becomes necessary to provide .for correcting this, even.at the expense of efiiciency- My invention alms to accomplish this byproviding a separate set of overload nozzles forthe second. stage, andfor other intermediate stages if desired, such overload nozzles being"supplied with steam independently of the regular stage nozzles throughpipes controlled by hand valves. When the engine is run condensing,these valves are .kept closed, and the steam passes from stage to stageinthe usual manner. ,But when it becomes necessary to runnon-condensing,

- then the hand valves are opened, one or more, as may be necessary, andlive steam or other motive fluid is fed directly to the specialoverloadnozzles of the second stage,

and to other stages if desired.

In the accompanying drawings, Figure 1 is a side elevation of a portionof-a horizontal steam turbine, partly in Section, embodying myimprovements 'Fig.- 2 is an end'view' of the steam chest and a portionof the sec 0nd stage nozzles; Fig. 3 is a top plan view of the same.

The usual easing 1 '.the wheels 3 mounted on said shaft. and

carrying the buckets 4. In the drawing; there are two wheels per. stage,the buckets cooperating with the stationary intermediates 5. The nozzles6 which deliver the steam to the first stage wheels, are fed through thepassage 7 to which the steam is admitted by the valves, 8' which arecon- Specification O f Letters Patent.

incloses the shaft 2 and TURBINE VALVE-GEAR.

passage 7 to the overload nozzles, compris- Patented Oct: 24,1911.Application filed Marc'h '22, 1909. Serial No. 484,883.

a passage 10 running to a chamber 11, the

entrance to which is controlled by the valve 12, which has a-spindle 13passing through a stuffing box 14 and provided with a hand wheel 15outside of the auxiliary steam chest 16. The auxiliary chest is castwith or secured to the main steam chest 17. From the chamber a pipe- 18conveys the steam to a com-- partment 19 from which one or more specialnozzles 20 direct it upon the buckets of the first wheel in the secondstage of the turbine. The special nozzles are not those to which thesteam is led from the first stage of the machine, which are shown at 21in Fig; 2. In Fig. 1 the nozzles 6 and 20 appear to be'in the samelongitudinal plane, but as a matter of fact they are in differentplanes; the showing in the drawing having been adopted for the sake ofsimplicity of illustration.

Two hand valves and pipes 18 are shown in the drawings, but this numberis merely illustrative and may be varied at will. Each hand valvecontrols its own independent chamber 11, pipe ,18 and compartment 19,

integral with the casing. In this flange also are formed the passagewayswhich lead from the first stage to the regular second stage nozzles. 4

The speed governor is contained in a casing 25 and is driven by the lowspeed shaft 26 through suitable gearing from the main shaft 2. Thenozzle valves may be actuated in a variety of ways. In the presentillustration of my invention they are actuated. by a connecting rod 27lever 28 and shaft 29. The action of said parts on the valve stem iscontrolled by the speed governor through the rod 30, arm 31, lever 32,connecting rod 33' and arm 34. I

In accordancewith the provisions of the patent statutes, I havedescribed the principle of operation of my invention, together paratusshown is only illustrative, and that the. invention can be carried outby other 7 means.

loo

What I claim as new and desire to secure by Letters Patent of the UnitedStates, is

1. In a multistage turbine, admission and nozzle, a conduit supplyinghigh pressure fluid to the auxiliary nozzle and separating the inlet ofthe auxiliary nozzle from the inlet of said regular nozzles, a valvethat is common to an admission nozzle and the conduit, a governor torcontrolling the valve,

and a handvalve for controlling the passage of motive fluid through theconduit independently of the governor valve.

3. In a multistage elastic fluid turbine having admission nozzles andregular stagenozzles, a steam chest receiving motlve' fluld from asuitable source, a bypass around-the first stage, a hand-operated valvecontrolling said by-pass, a governor controlled valve that regulates theadmission of steam from the steam chestv to theadmission nozzles and theby ass, one or more special nozzles supplied with steam from saidbypass, and means separatin the inlets of the special nozzles from the iets of the regular stage nozzles.

4. In a multistage elastic fluid turbine having admission and regularstage nozzles, the combination with a plurality of governor-controlledvalves, of one or inore bying it against the buckets of wheels in anintermediate stage, and means separating the inlets oft-he specialnozzles from the inlets of the regular nozzles.

5. In a multistage elastic fluid turbine having admission nozzles andregular stage nozzles, auxiliary stage nozzles, a steam chest receivingmotive fluid from a suitable source, conduits for conveying motive fluidfrom the chest so that-it can flow in arallel to the admission andauxiliary nozz es the conduit or conduits leading to the auxiliarynozzles separatin the inlets of said nozzles from the inlets oi theregular stage nozzles,

and means for controlling the delivery of motive fluid to the nozzles.

6. In a multistage elastic fluid turbine, the combination with the mainsteam chest, of an auxiliary chest divided into'chanlbers, governorvalves-in said main st/eamchest, hand-operated valves controlling theadmis: sion of steam from: below this overnorr valves to said chambers,pipes leading from said chambers, and speclal nozzles for' anintermediate stage of the turbine connected with the delivery ends ofsaid pipes.

Inwitness whereof, I have hereunto set my hand this 19th day of March,1909.'

HENRY J. HANZLIK.

Witnesses:

' CHARLES A. Bnmmnp,

DUGALD McK. MoK LoP.

